Recent questions tagged process-scheduling

2 2 votes
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Consider the following :ProcessArrival TimeBurst Time A 0.000 3 B 1.001 6 C 4.001 4 D 6.001 2Which of the followin...
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In round-robin if one process finishes its time quantum and at the same time another process enters the system so which one will enter the ready queue first?
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756 views
Does non preemptive CPU scheduling needs hardware support.kindly explain.
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Which one of the following cannot be scheduled by the kernel ?Kernel level threadUser level threadProcessNone of the option
2 2 votes
1 answers 1 answer
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A uniprocessor computer system has three processes, which alternate 20ms CPU bursts with 80ms I/O bursts. All the processes were created at nearly the same time. The I/O ...
1 1 vote
0 0 answers
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579 views
A uniprocessor computer system has three processes, which alternate 20ms CPU bursts with 80ms I/O bursts. All the processes were created at nearly the same time. The I/O ...
0 0 votes
1 1 answer
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721 views
____________ is the elapsed time between the time a program or job is submitted and the time when it is completed.Response time Turnaround timeWaiting timeThroughput
2 2 votes
1 answers 1 answer
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Three processes P1, P2 and P3 arrive at time zero. The total time spent by the process in the system is 10ms, 20ms, and 30ms respectively. They spent the first 20% of the...
1 1 vote
1 1 answer
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Does FCFS suffer from starvation?
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1 1 answer
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in round robin algorithm if a process with burst time = 10 arrived at t=0 and time quantum is 2 units, context switch time is 2 units . Then completion time of the proces...
0 0 votes
1 1 answer
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994 views
Which of the following $\text{CPU}$ scheduling algorithms is/are supported by $\text{LINUX}$ operating system?Non-preemptive priority schedulingPreemptive priority schedu...
0 0 votes
2 2 answers
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Suppose a system has $12$ magnetic tape drives and at time $t_0$, three processes are allotted tape drives out of their need as given below:$$\begin{array}{ccc} & \text{M...
0 0 votes
1 1 answer
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Given $\text{CPU}$ time slice of $2\text{ms}$ and following list of processes.$$\begin{array}{ccc} \text{Process} & \text{Burst time} & \text{Arrival time} \\ & \text{(ms...
1 1 vote
1 1 answer
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Identify the circumstances under which pre-emptive $\text{CPU}$ scheduling is used:A process switches from Running state to Ready stateA process switches from Waiting sta...
53 53 votes
3 answers 3 answers
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Which of the following statement(s) is/are correct in the context of $\text{CPU}$ scheduling?Turnaround time includes waiting timeThe goal is to only maximize $\text{CPU}...
32 32 votes
7 answers 7 answers
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Three processes arrive at time zero with $\text{CPU}$ bursts of $16,\;20$ and $10$ milliseconds. If the scheduler has prior knowledge about the length of the $\text{CPU}$...
1 1 vote
1 1 answer
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519 views
One disk queue with requests for $I/O$ to blocks on cylinders. The Request are in the following manner:$\text{98 183 37 122 14 124 65 67}$Considering $SSTF$ (shortest see...
4 4 votes
4 4 answers
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In real-time operating systems, which of the following is the most suitable scheduling scheme?round-robinfirst-come-first-servedpreemptiverandom scheduling
3 3 votes
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Which of the following scheduling algorithms could result in starvation?PriorityRound RobinFCFSNone of the above